 The pleasure of love is in loving; we are happier in the passion we feel than in what we inspire.Maxim 259. Compare: "They who inspire it most are fortunate, As I am now; but those who feel it most Are happier still", Percy Bysshe Shelley, Prometheus Unbound, Act ii, Scene 5.

 He even seduces the old women, simply for the pleasure of adding them to his list. But his preference is really for the young beginners. He never thinks of whether she's rich, ugly or beautiful – as long as she wears a skirt, you know very well what he does! Leporello, Act I, sc. v; translation p. 147.